Okay, this post is rather late but I didn't have much time to set up the blog earlier on. Anyway, Mr. Lim gave us these scenarios to solve. We were supposed to come up with solutions to our assigned scenario in groups. I was in the same group as Jasley and Abigail. Our scenario was as follows:
You are given a length of copper wire with a small diameter. The only measuring instrument available to you is the meter ruler. Explain how you would measure the diameter of the wire with an acceptable degree of accuracy.
At first, we were stumped as it seemed impossible. Then, Mr. Lim told us we could have a pencil to use as part of the materials. After that, everything just snapped into place. We came up with a simple but effective solution:
To find out the diameter of the copper wire, first we have to twirl the wire round the pencil. Then, measure the length of the pencil. Then, find out how many twirls it takes to make the circumference of the pencil and divide it for the diameter of the copper wire.
Pretty neat, isn't it?
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